Results 61 to 70 of about 930,790 (300)

Spatio-temporal analysis of air pollution dynamics over Bangalore city during second wave of COVID-19

open access: yesNatural Hazards Research
The country wide lockdown implemented during 27th April to 14th June 2021 in order to prevent the spread of COVID-19 during the second wave in India. Effect of the restricted lockdown resulted in improved air quality.
Iranna Gogeri, K.C. Gouda, S.T. Aruna
doaj   +1 more source

Functionalizing Micro‐to‐Mesoscopic Electrode Architectures for Regulating Electron Transfer Behaviors in Electrocatalysis

open access: yesAdvanced Functional Materials, EarlyView.
A systematic review is conducted to assess the influence of electrode architecture across micro‐ to mesoscopic length scales on electron‐transfer pathways in electrocatalysis. We discuss the structure‐activity relationships in electrocatalytic applications, including resource recovery and environmental remediation, and provide cost‐effective, efficient
Manshu Zhao   +6 more
wiley   +1 more source

Modeling droplet collision and coalescence in an icing wind tunnel and the influence of these processes on droplet size distribution [PDF]

open access: yes, 2005
A theoretical model of a two-phase air/dispersed water spray flow in an icing wind tunnel is presented here. The mutual interactions taking place within the dispersed phase known as binary droplet collisions, as well as gravitational sedimentation are ...
Kollar, László E.   +2 more
core   +1 more source

Two Coexisting Pathways to Volatility in Valence‐Change Memory Devices

open access: yesAdvanced Functional Materials, EarlyView.
Volatile VCM‐type memristive devices exhibit current relaxation after resistive switching, but their microscopic origin remains debated. Using pulsed measurements and a new Tunnel‐DLTS approach on Pt/SrTiO3/Nb:SrTiO3 devices, we show that post‐SET volatility is predominantly ionic, while electronic contributions—arising from quasi‐Fermi‐level ...
Johannes Hellwig   +3 more
wiley   +1 more source

Binary‐to‐Ternary Reconfigurable Transistors Using Plasma‐Assisted MoS2

open access: yesAdvanced Functional Materials, EarlyView.
A binary‐to‐ternary reconfigurable transistor is demonstrated using a dual‐gated molybdenum disulfide homojunction with localized O2 plasma treatment. The device exhibits on/intermediate and intermediate/off current ratios of 102 and 104, respectively, and the intermediate state is electrically tunable in the ternary mode.
Yeonghyeon Ko   +7 more
wiley   +1 more source

[News Clip: Wind tunnel]

open access: yes, 1958
Video footage from the WBAP-TV station in Fort Worth, Texas to accompany a news story about Chance-Vought aircraft finishing a wind ...
WBAP-TV (Television station : Fort Worth, Tex.)
core   +1 more source

Unravelling Bangalore's air quality during the second wave: Multifaceted analysis of COVID-19 lockdown impact

open access: yesNatural Hazards Research
This study assesses the impact of the second wave COVID-19 lockdown (March–June 2021) on air pollution levels in Bangalore, India, using real-time data from eight CPCB monitoring stations across the city.
Iranna Gogeri   +2 more
doaj   +1 more source

Fluid–structure interaction study of three-dimensional vehicle model under crosswind

open access: yesAdvances in Mechanical Engineering, 2015
It is very important to study fluid–structure interaction of vehicles which move in strong crosswind environment. For solving a fluid–structure interaction problem, the effect of the deformation and vibration of the elastic body on the flow field should ...
Hui Zhu, Yang Zhigang
doaj   +1 more source

Light‐Induced Field‐Tunneling Synapses in Solution‐Processed Van Der Waals Heterostructures for Scalable, Retina‐Inspired Optical Sensing

open access: yesAdvanced Functional Materials, EarlyView.
A scalable, solution‐processed WSe2/ZrO2‐x van der Waals heterostructure realizes a light‐induced field‐tunneling synapse (LIFTS) that activates exclusively under bright illumination, emulating the photopic adaptation of the human retina at the device level.
Kijeong Nam   +10 more
wiley   +1 more source

Roll‐to‐Roll Processable EC/TC Hybrid Smart Windows Driven by a Bidirectional Dual‐Chromic Polymer Electrolyte

open access: yesAdvanced Functional Materials, EarlyView.
We present a scalable EC/TC hybrid smart window using a DCPE that enables tunable solar modulation (ΔTsol:15–43%), fast electrochromic switching (<90 s), and strong thermal blocking (10–14°C reduction). HPMC improves thermal stability, while an optimized ISL enhances EC performance.
Soyeon Kim   +4 more
wiley   +1 more source

Home - About - Disclaimer - Privacy